Lamp cap with build-in switch and LED tube

ABSTRACT

The invention discloses a built-in switch cap, including a cylinder body, one end of which is open for setting a tube, the other end is closed and is provided with pins and connected with a drive power. There is a micro-switch installed in the cap to control the ON/OFF of the drive power; a flexible button is provided to press the above micro switch, the press button is bulging from on the closed side of the cylinder body. The invention discloses a LED tube, which at least has one cap. The invention uses the micro switch installed in the lamp cap, pressing the button on the cap when touching the switch, the power source supplies power, increasing the safety of products. The cap also can directly replace the existing cap, with a strong commonality.

The present application claims the priority benefit of ChineseApplication No. 201610738655.8, filed Aug. 8, 2016, which is herebyincorporated by reference.

TECHNICAL FIELD

The present invention relates to the field of LED (light-emitting diode)lighting, specifically involving a built-in switch cap and LED tube.

BACKGROUND TECHNOLOGY

LED tube is also known as clean tube and fluorescent tube, with the LEDas an illuminant body. A LED using light emitting diode as its lightsource, which has higher light efficiency, more energy saving, longerlifetime and environment-friendly, has become the most ideal product toreplace fluorescent lamp. A LED tube has the same exterior dimension andtube diameter as fluorescent tube, such as T5 tubes, T8 tubes and T10tubes, and so on.

A LED tube has a very simple way of installation including removing theoriginal tube, then inserting the pin cap on both ends of the LED tubeinto the lamp holder, directly adding the AC to two ends of the LEDtube.

LED T8 tubes are widely used, mainly for indoor lightening. Theclassification of LED T8 tube can be divided into 0.6 meters, 0.9meters, 1.2 meters and 1.5 meters according to its length. Differentlength means different power. The longer the length, the more the chips,and power will increase; according to the shape of tube, the tubes canbe divided into circular and elliptical tubes and so on.

In the current lamps, the controlling switch is mostly designed on thesocket or a switch box is installed separately on the wall to controlthe on/off of the tube. If the switch is open, there exists some risk ofinserting the LED tube to the pin cap immediately.

THE SUMMARY OF THE INVENTION

Aiming at the problems existing in the present technology, presentinvention provides a built-in switch cap and LED tube. The micro switchinstalled in the cap will be pressed when tube is inserted to the lampholder, then the power source starts to work and light up the LED tube.It can replace existing lamp cap with safety and better commonality.

A built-in switch lighting cap, comprising a cylinder body having oneend open for assembling tube, and the other end closed with pins whichelectrically connecting to a power source of the lamp, characterized inthat a micro switch is installed within the lighting cap for controllingon or off of power source, and an active press-button was set, raised atthe closed end of lamp cap, to trigger the micro switch.

The present invention improves from existing lamp cap and uses microswitch technology which enables lamp to connect directly to certainvoltage power. With advantages of its small volume, pleasing design andcheap cost, such cap could be widely applied with convenience, andenables connection with power source by micro switch.

When inserting such a cap into lamp base, press-button will be pressedinside by resistance, triggering the micro switch, and enabling pinselectrically connected with power driver.

The present invention could use integrated lamp cap, or combination cap.As for preferred option, the other end of the cylinder body is sealed byend closure wherein pins are inserted, and on the end closure, a throughhole is installed for cooperation of the extrusion of the press-button.Therefore, the lamp cap, formed by the cylinder body and the endclosure, makes whole tube assembly simple. The end closure could bebonded or bolted to be fixed inside of the cylinder body. Thepress-button extends outwards through the through hole, and will bepressed inwards when receiving resistance from the lamp holder.

Preferably, a circle edge is set onto an inside-wall of the cylinderbody, the end closure is inserted in to the cylinder body and engagesthe circle edge, in order to control assembly position of the endclosure. Besides, the circle edge sets bolt hole for fixing the endclosure, therefore the end closure and the cylinder body are fixed bybolts.

Preferably, a limiting board is installed on the press-button forpreventing the press-button from slipping from the cylinder body, thelimiting board is slightly larger than the through hole, with onesurface of the limiting board has bumping points to trigger the microswitch, and the surface of the limiting board also has a steering bar.

Preferably, the two micro switches are paralleled and reverselyarranged, corresponding to the two bumping points.

The “reversely arranged” means that the pressure part on the microswitch faces different directions, as a level-roller switch, levels ontwo micro switches raise alternately, so is the two bumping points. Thepresent invention controls electrically-connecting between two pins andpower source by two micro switches at same time.

Preferably, a support board is installed within the micro switch and thesteering hole for steering bar is located inside of the cylinder body,which guides the press-button's action.

Preferably, a spring is installed onto the steering bar and engagesagainst the position limiting board and the support board. Therefore,when the lamp cap is released from the lamp holder, the press-buttonwill be restored by the spring, releases the micro switch, and cuts offelectrical connection between the pins and the power source.

Preferably, the support board is the printed circuit board whichelectrically connects to the pins, power source and micro switch.

Preferably, the press button is set between two pins.

The present invention discloses a LED (light emitting diode) tube, wherea lamp cap is set onto at least one end of the LED tube. Moreover, suchlamp cap could be set onto both ends of LED (light emitting diode) tube.

The present invention adopts micro switch technology to achieve highlyprecise control, with advantage on its small volume, pleasing design andcheap cost, such cap could be widely applied with convenience, andenables driver powered by micro switch.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is the exploded view of the present invention

FIG. 2 is the inside structure diagram of the lamp cap

FIG. 3 is another inside structure diagram of the lamp cap

FIG. 4 is the structure diagram of the end closure;

FIG. 5 is the structure diagram of the cylinder.

DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION

The lamp cap as shown in FIGS. 1˜5, including an end closure 3, acylinder body 10, pins 2, a press button 4, a spring 5, a row pin 6, amicro switch 7 and a printed circuit board 8, a pin 6, a spring 5, amicro switch 7 and a printed circuit board 8 are all set inside of thelamp cap, wherein the printed circuit board 8 and the micro switch 7,the row pin 6, and the pin 2 are electrically connected to the powersource (not shown) of the lamp.

The two ends of the cylinder body 10 are open, wherein one end is usedto assembly the tube, the end closure 3 is inserted into the other endof the cylinder body 10 to sealingly close that end. The inner wall ofthe cylinder body 10 is provided with the rim 11 for position limitingpurposes, the end closure 3 is inserted in the cylinder 10 and engagesagainst the rim 11, which can control the position of the end closure.The rim 11 is provided with bolt holes to fix the end closure 3. Afterthe end closure 3 is assembled into the cylinder body 10, using the bolt1 installed within the bolt assembly hole 31 such that the bolt 1 passesthrough the circuit board 8 and screws into the bolt hole on the edge ofthe ring to complete the fixation of the end closure.

The end closure 3 has an air vent 32 and a through hole 33 for theextrusion of the raised press button 4, two pin 2 also sets on the endclosure 3 and connects to the printed circuit board 8 though the row pin6, the through hole 33 is located between the two pins 2. The printedcircuit board 8 is fixed inside of the end closure 3 through the screw9.

The position limiting board 41 is located on the press button 4 and theboard prevents the press button from slippery from the through hole 33.The position limiting board a bit bigger in size than the through hole,one surface of the position limiting board has bumping points 42 and asteering bar 43. The bumping points 42 are used to trigger the microswitch 7, when the lamp is inserted into the lamp holder; the pressbutton 4 is pressed back by resistance, which triggers the micro switch8, which enables the electrical connection between the pin 2 and thepower source. The printed circuit board 8 has steering holes; the pressbutton 4 is guided to work through the cooperation between the steeringbar 43 and the steering hole.

In this practical embodiment, the two micro switches 7 are bothparallelly and reversely arranged, correspond to the bumping points 42alternately, in order to control electrical connecting between the twopins 2 and the power source at same time. In addition, two steering bar43 respectively sets on two sides of the press-button 4 to keeps balanceof pressure on the press button 4.

The spring 5 is sleeved onto the steering bar 43, the two ends of thespring 5 respectively engage against the position liming board 41 andthe printed circuit board 8. In other words, once the lamp cap isreleased from the lamp holder, press button 4 will be restored by actionof the spring 5, causing the bumping points 42 to release its action onthe micro switch 7, and to cut off electrical connection between thepins 2 and the power source.

In another embodiment, both ends of the LED tube are arranged with theabove structured cap. When the LED tube inserted in the socket, thepress button 4 contracts inwardly after receiving resistance and engageswith the micro switch 8 to connect the electrical circuit between thepower source and the pins 2, so that the LED tube's electrical circuitis completed. When the LED tube is removed from the lamp-socket, thepress button 4 reset to its original position, which relieves its actionto the micro-switch 7, disconnecting the electrical circuit connectionbetween the power source and the pin 2.

The above description is only for the better implementation of theinvention, the invention is not used to limit, all within the spirit andprinciple of the invention, any modification made by equivalentreplacement, improvement, should be included in the scope of protectionof the invention.

The invention claimed is:
 1. A lamp cap with a build-in switch,compromising a cylinder body, having one end of the cylinder body beingopen for installing a lamp tube, and another end of the cylinder bodybeing closed with pins which electrically connecting to a power sourceof the lamp, characterized in that, within the lamp cap, a micro switchis installed for controlling on or off of the power source, and amovable press button is installed to trigger the micro switch, the pressbutton being raised from the closed end of the lamp cap, wherein aposition limiting board is provided on the press-button and the boardprevents the press button from slipping from the cylinder body, with onesurface of the limiting board has bumping points to trigger the microswitch, and the surface of the limiting board also has a steering bar,characterized in that the lamp cap is sealed by an end closure, pins areinserted on the end closure, and a through hole is provided on the endclosure to cooperate with the raised press-button.
 2. The lamp capaccording to claim 1, characterized in that a circle edge is set onto aninner wall of the cylinder body, the end closure is inserted in thecylinder body and engages with the circular edge, and a bolt hole islocated on the circular edge for fixing the end closure.
 3. A lamp capwith a build-in switch, compromising a cylinder body, having one end ofthe cylinder body being open for installing a lamp tube, and another endof the cylinder body being closed with pins which electricallyconnecting to a power source of the lamp, characterized in that, withinthe lamp cap, a micro switch is installed for controlling on or off ofthe power source, and a movable press button is installed to trigger themicro switch, the press button being raised from the closed end of thelamp cap, wherein a position limiting board is provided on thepress-button and the board prevents the press button from slipping fromthe cylinder body, with one surface of the limiting board has bumpingpoints to trigger the micro switch, and the surface of the limitingboard also has a steering bar, characterized in that a support board isprovided within the cylinder body, the micro switch is installed on thesupport board, and a steering hole is provided in the support board tocooperate with the steering bar, and characterized further in that thesupport board is the printed circuit board which electrically connectsthe pins, the power source and the micro switch.
 4. A lamp cap with abuild-in switch, compromising a cylinder body, having one end of thecylinder body being open for installing a lamp tube, and another end ofthe cylinder body being closed with pins which electrically connectingto a power source of the lamp, characterized in that, within the lampcap, a micro switch is installed for controlling on or off of the powersource, and a movable press button is installed to trigger the microswitch, the press button being raised from the closed end of the lampcap, wherein a position limiting board is provided on the press-buttonand the board prevents the press button from slipping from the cylinderbody, with one surface of the limiting board has bumping points totrigger the micro switch, and the surface of the limiting board also hasa steering bar, characterized in that the press button is locatedbetween two pins.
 5. An LED tube characterized in that the lamp capaccording to claim 1 is connected with the LED tube.